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AP EAMCET201921 Apr 2019Morning ShiftChemistryGeneral Organic ChemistryActual

Which of the following sets is in the correct order regarding the property mentioned against them?

Options

  1. AI, II only
  2. BI, III only
  3. CII, III only
  4. DI, II, III

Correct answer

B. I, III only

Step-by-step solution

I. Key Idea (-I) group, if are present along with - COOH group in an acid, they increases the acidic property while (+) I groups or groups show hyperconjugation will decreases the acidic property. (a) NCCH ₂ COOH : Contain, NC (i.e. -I ) group along with - COOH , thus will increases the acidic nature. (b) FCH ₂- COOH : Contain, F (i.e. -I ) group thus increases the acidic nature. Between NCCH ₂ COOH and FCH ₂ COOH , NCCH ₂ COOH is more acidic due to stronger (-) I effect. (c) H ₃ CCH ₂ COOH : Contain, CH ₃ group wh

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